I asked this question before but forgot in what forum, so I couldn't find your answers. I read in one of the forums that canned pumpkin is a good source of fiber. What I don't remember is how much and how often. My sweetie had a hairball last week, yucky to clean up and hard on the poor kittie. If I can prevent this I'm all for it. I did buy the pumpkin but just want to make sure I don't over or under do it. I'll make a note of where I've posted this question this time.